Anthropic, the company behind the Claude family of AI models, sent one of its top security researchers to Washington to address escalating government concerns about the safety of frontier AI systems. The move comes as US export control directives forced the company to temporarily pull global access to two of its newest models.
Export controls hit Anthropic’s newest models
In June 2026, US export control directives led Anthropic to temporarily suspend global access to its Fable 5 and Mythos 5 models. The reasoning: vulnerabilities that could allow adversaries to jailbreak the software, effectively stripping away cybersecurity protections and opening the door to malicious uses.
The suspension of model access is notable because Anthropic has long positioned itself as the safety-first alternative in the AI race. The company signed memorandums of understanding with the US AI Safety Institute back in 2024, committing to pre-release model safety evaluations.
Carlini’s role at Anthropic focuses specifically on testing how well model defenses hold up against adversarial attacks. Red-teaming, his specialty, involves deliberately trying to break a system to find its weak points before someone with worse intentions does.
